Refactor media upload

Use Upload Media logic from Pleroma

Backend changes for picture upload

Move AS <-> Model conversion to separate module

Front changes

Downgrade apollo-client: https://github.com/Akryum/vue-apollo/issues/577

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/service/metadata/actor.ex

@@ -3,14 +3,19 @@ defimpl Mobilizon.Service.Metadata, for: Mobilizon.Actors.Actor do
   alias Mobilizon.Actors.Actor
 
   def build_tags(%Actor{} = actor) do
-    [
+    tags = [
       Tag.tag(:meta, property: "og:title", content: Actor.display_name_and_username(actor)),
       Tag.tag(:meta, property: "og:url", content: actor.url),
       Tag.tag(:meta, property: "og:description", content: actor.summary),
       Tag.tag(:meta, property: "og:type", content: "profile"),
       Tag.tag(:meta, property: "profile:username", content: actor.preferred_username),
-      Tag.tag(:meta, property: "og:image", content: actor.avatar_url),
       Tag.tag(:meta, property: "twitter:card", content: "summary")
     ]
+
+    if is_nil(actor.avatar) do
+      tags
+    else
+      tags ++ [Tag.tag(:meta, property: "og:image", content: actor.avatar.url)]
+    end
   end
 end